/Engine/Plugins/Enterprise/DatasmithImporter/Source/DatasmithImporter/Public/DatasmithActorImporter.h
Sets the materials on a static mesh actor to override the ones from the static mesh
static void OverrideStaticMeshActorMaterial ( const [FDatasmithImportContext](API\Plugins\DatasmithImporter\FDatasmithImportContext) & ImportContext, const [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [IDatasmithMaterialIDElement](API\Runtime\DatasmithCore\IDatasmithMaterialIDElement) > & SubMaterial, [UDatasmithStaticMeshComponentTemplate](API\Plugins\DatasmithContent\ObjectTemplates\UDatasmithStatic-) * StaticMeshComponentTemplate, int32 MeshSubMaterialIdx )